Home / 51,395.96-77,123.10-20,253.08

Finding the Fourth Proportional to 51,395.96, 77,123.10 and 20,253.08

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Solution

The fourth proportional to 51,395.96, 77,123.10 and 20,253.08 is: 30,391.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,395.96 : 77,123.10 = 20,253.08 : x
  2. Step 2: Convert to fraction form
    51,395.96/77,123.10 = 20,253.08/x
  3. Step 3: Cross multiply
    51,395.96x = 77,123.10 × 20,253.08
  4. Step 4: Simplify right side
    51,395.96x = 1,561,980,314.15
  5. Step 5: Solve for x
    x = 1,561,980,314.15/51,395.96
  6. Step 6: Final answer
    x = 30,391.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.